Excel Power Expander (Windows version) is packaged in form of an easy-to-use software installer. This software installer will guide you through, step-by-step, the whole installation process.
ZIP version of Excel Power Expander is also available from the Vonixx web site. That is especially useful for Windows users who do not have the access right to install software on their computers. (e.g. it is common for banks to disallow users to install software.) Just download the ZIP package, and unzip to anywhere like your desktop or “My Documents” folder.)